What does BOD stand for in wastewater testing?

What does BOD stand for in wastewater testing?

• A. Biological Oxygen Demand
• B. Basic Oxygen Demand
• C. Biochemical Oxygen Demand
• D. Bacterial Oxygen Depletion

Answer: (C)

BOD stands for Biochemical Oxygen Demand. It measures the amount of oxygen that microorganisms will consume as they biologically oxidize organic matter in a water sample under controlled conditions, typically over five days at 20°C (BOD5). This helps indicate how much oxygen will be required in the environment or in a treatment process to break down the organic pollutants in wastewater. Higher BOD means more biodegradable pollution and greater potential impact on aquatic life. The other terms don’t fit because they aren’t the standard designation for this biological oxygen-demand test, and they don’t describe the biological oxidation process that BOD measures.

BOD stands for Biochemical Oxygen Demand. It measures the amount of oxygen that microorganisms will consume as they biologically oxidize organic matter in a water sample under controlled conditions, typically over five days at 20°C (BOD5). This helps indicate how much oxygen will be required in the environment or in a treatment process to break down the organic pollutants in wastewater. Higher BOD means more biodegradable pollution and greater potential impact on aquatic life. The other terms don’t fit because they aren’t the standard designation for this biological oxygen-demand test, and they don’t describe the biological oxidation process that BOD measures.